Powerful. Non-Toxic. 100% Organic. EPA Safer Choice Certified.
SeaScour™ – The Safer Choice for Descaling Marine, Industrial & Facility Systems
First Choice Marine Supply is proud to be an authorized distributor of SeaScour™, the first and only EPA Safer Choice-certified descaler engineered for the marine, industrial, and facility maintenance sectors. SeaScour™ sets a new standard for sustainable maintenance — eliminating scale, rust, and organic fouling while protecting your equipment, crew, and the environment.
Why Choose SeaScour™?
Expanding Beyond the Dock:
SeaScour™ isn't just for vessels it’s the go-to descaler for chiller systems and cooling loops in:
No neutralizers or acid-handling training are needed. SeaScour™ can be applied by in-house maintenance teams without additional permits or waste handling steps.
Common Applications
Heat Exchangers & Condensers
Chillers & Cooling Towers
Seawater & Freshwater Piping Systems
AC & Refrigeration Units
Desalination Plants
How It Works
SeaScour™ breaks down calcium carbonate scale by disrupting the ionic bond between calcium and carbonate without corroding or reacting with metals, seals, or coatings. It flushes clean, is 100% water soluble, and fully biodegradable.
How SeaScour™ Compares to Traditional Descalers
While traditional cleaning agents rely on harsh acids and corrosive chemicals, SeaScour™ delivers industrial-strength descaling power with none of the health, safety, or environmental risks. Here’s how it stands apart:
| Features | SeaScour™ | Traditional Descalers |
|---|---|---|
| Formula Base | 100% Organic | Inorganic Acid-Based |
| EPA Safer Choice Certified | Yes | No |
| Biodegradable | Fully biodegradable, zero toxin residue | Often non-biodegradable, harmful byproducts |
| Safe for Overboard Discharge | Yes – Compliant with marine regulations | No – Requires controlled disposal |
| Effect on Equipment | Non-corrosive to metals, gaskets, and seals | Can degrade components and shorten equipment life |
| VOC Emissions | None | Emits volatile organic compounds |
| Labor Requirements | No disassembly – Clean-In-Place (CIP) capable | Often requires disassembly and additional labor |
| Environmental Impact | Eco-friendly – won’t harm aquatic ecosystems | May promote algae blooms, toxic runoff, and biocidal harm |
| Hazmat Handling or Permits | None required | Typically needed for acid-based handling |
Why It Matters
- Phosphoric acid contributes to phosphate pollution and algal overgrowth
- Hydrochloric acid is corrosive and toxic to marine life
- Citric and other organic acids still oxidize metals and require special handling
SeaScour™ eliminates all these risks while preserving high-value equipment and ensuring compliance with EPA, USCG, and facility safety standards.
Available Sizes
1-Gallon | 5-Gallon | 55-Gallon Drum | 275-Gallon Tote


Real-World Results
Commercial Vessel Testimonial
"We flushed two plate heat exchangers with SeaScour™ in place instead of overhauling. Performance was comparable to full teardown — saving time, money, and manpower."
— Scott Robinson, Offshore Marine Engineering Manager
USCGC VALIANT Case Study
Saved $30,000+ and 3 weeks of downtime by performing an on-board CIP flush instead of sending heat exchangers ashore for cleaning.
Hospital HVAC Maintenance
Clients report 50–60% savings on annual descaling costs by replacing acid-based flushes with SeaScour™ for in-house chiller cleaning.